Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

File transfer over VPN

File transfer over VPN

File transfer over VPN

Hello all,

I am looking for a solution to backup data folders from one site to another remote site through a secured connection. I am new to VPN and FTP.

I have researched on the web to find out what I need to get done and I am still not sure whether I got the basic concept correct.
Wonder if someone is kind enough to provide some feedback to me.

I believe I need to establish a VPN between the two sites. Then FTP the data folders between the two sites using a client-server FTP structure.

VPN Questions
1/ To provide a secured connection, I need a VPN connection between the client and the remote server. Correct?

2/ I used WinXP's VPN. During the VPN setup, the installation never asked me for the IP address of my router. Was that normal? Does it mean the setup can detect the IP address of the (external) router and the IP address of the computer automatically?

3/ Is the free Hamachi VPN a better (i.e. more secured, encrypted etc) VPN than the VPN in WinXP? Or there are no major differences?

FTP Questions
I am not sure about the IP addressing wrt to FTP.
Suppose the two sites have the following IP addresses:
Site A (the client) - External IP address (the router):; local IP address for the client computer:; port #: 21
Site B (the server) - External IP address (the router):; local IP address for the server computer:; port #: 21
Port forwarding port21 to the routers on both sites.

i/ When running a FTP program, the program normally ask for the host name of the remote ftp server. Since I don't have a host name on the remote server side, I should use the IP address instead. Correct?

ii/ Since I setup VPN on both sides (between the client computer and the remote server computer), am I safe to assume that when FTP data folder from the client ( machine to the server machine (, this process is done through the above VPN automatically?

iii/ Am I correct to say that when FTP files from the client to the remote server, the client only recognize the remote server as and not Likewise, the server only sees the IP address of the client as and not And the reason is all the local IP addresses of the network computers are hide behind the router and firewall?

Thanks in advance.

RE: File transfer over VPN

Even before VPN and FTP are covered here how large are the files you are backing up and what is the bandwidth at each site?  Also look at online backup solution like Carbonite or Mozy.  

RE: File transfer over VPN

You may also want to look into SFTP (FTP transfers using SSH encryption). VPN basically encrypts your data as it passes from your source address to your destination. The destination gateway decrypts the packets based on a negotiation method determined when the VPN 'tunnel' is created. SFTP acts pretty much the same way however it utilises SSH (Secure Shell) encryption over port 22. This can be a cheaper and easier solution to implement if you use the right software.

Checkout programs like CoreFTP

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close